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Low-temperature solid oxide fuel cell based on calcium stannate/strontium iron molybdenum composite material

A technology of solid oxides and composite materials, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve problems such as short circuits, achieve high ion conductivity, prevent electron transmission, and achieve good output power effects

Active Publication Date: 2019-05-31
NANJING XIAOZHUANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a semiconductor material is used as the electrolyte material of a fuel cell, it is easy to think of a short circuit phenomenon. Because of this, materials with semiconductor properties have not been used in fuel cells so far.

Method used

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  • Low-temperature solid oxide fuel cell based on calcium stannate/strontium iron molybdenum composite material
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  • Low-temperature solid oxide fuel cell based on calcium stannate/strontium iron molybdenum composite material

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Embodiment Construction

[0027] According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the content described in the embodiments is only used to illustrate the present invention, and should not and will not limit the present invention described in detail in the claims.

[0028] Such as figure 1 As shown, the foamed nickel coated with NCAL on the surface constitutes a symmetrical electrode. The cathode and anode of the fuel cell of the present invention use foamed nickel coated with NCAL on the surface. The core electrolyte layer is a composite of CSO and SFM. Therefore, the structure of the fuel cell is: foam Nickel / / NCAL / / CSO / SFM / / NCAL / / Nickel foam; where NCAL is Ni 0.8 Co 0.15 Al 0.05 LiO 2-δ The material (can be purchased or prepared by a public method), CSO is commercially available or prepared by the method of the present invention, SFM is commercially available; foamed nickel is commercially purchased foamed n...

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Abstract

The invention discloses a low-temperature solid oxide fuel cell based on a calcium stannate / strontium iron molybdenum composite material. The cathode and the anode of the fuel cell are foamed nickel coated with NCAL on the surface. The electrolyte layer of the fuel cell is a CSO / SFM composite material. Namely, the structure of the fuel cell of the present invention is foamed nickel / / NCAL / / CSO / SFM / / NCAL / / foamed nickel. The low-temperature solid oxide fuel cell of the invention uses the calcium stannate / strontium iron molybdenum composite material having a perovskite structure as its electrolytelayer, which greatly reduces the electrode polarization loss during the electrochemical reaction process of the fuel cell. The electrolyte material has good output power at the low-temperature section, so that the solid oxide fuel cell using the electrolyte material can operate efficiently and stably for a long period of time in the low-temperature section (300 to 600 degrees centigrade).

Description

Technical field [0001] The invention relates to a low-temperature solid oxide fuel cell based on a calcium stannate / strontium-iron-molybdenum composite material, which belongs to the technical field of new energy. Background technique [0002] Solid oxide fuel cells can efficiently convert chemical energy in fuels (such as hydrogen, methane, etc.) into electrical energy. The conversion efficiency is not limited by the Carnot cycle, and its efficiency is much higher than that of thermal power generating units. Fuel cells can be divided into proton exchange membrane fuel cells, solid oxide fuel cells, alkaline fuel cells, molten carbonate fuel cells, and phosphate fuel cells according to their electrolyte classification. Among them, solid oxide fuel does not require precious metal catalysts and materials. The advantages of wide selection range and high conversion efficiency have attracted wide attention. However, current solid oxide fuel cells mainly use yttria stabilized zirconi...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/1016
CPCY02E60/50
Inventor 陆玉正颜森林
Owner NANJING XIAOZHUANG UNIV
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